Power transformers ensure the transmission of hundreds of kilovolts (kV) of electricity over long distances all the way to the end customer. If such a transformer fails in a large city, thousands of people can be affected. Ordering and delivering a new transformer has usually taken more than six months.
To ensure that power is not disrupted, electricity should be redirected to other parts of the grid instantly. The greater the level of redundancy built into a grid, the more resistant it will be to outages. That’s why many utility companies that serve major urban centers keep a backup transformer on hand. But it still takes several weeks to put a transformer of this power class into operation on site. Siemens’ mobile solution decreases this period to less than one week.